Over the years I've used one then the other. Not sure which is the correct one. The IMAP smpt server tends to 'time out' periodically, but if I set everything to pop my old emails dont seem to get deleted even though I set the advanced settings to delete after one day etc. I have also downloaded the automatic setup for my iPad (which strangely uses both POP and IMAP settings). Currently using the following. Please advise re: what is the best.

Imap is not supported by Optus and I think IOS tries to set this method up by default. When you set your mail to delete after a certain amount of days it is actually the mail server where the mail is deleted from not your phone.

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